/Engine/Source/Runtime/Engine/Public/Net/DefaultFaultHandler.h
To add fault handling for custom netcode (e.g. new NetConnection's orPacketHandlercomponents), create a new fault handler added to NetConnection.FaultManager, and use a custom enum withTNetResult(see DefaultFaultHandler/OodleFaultHandler).
class FDefaultFaultHandler : public [UE::Net::FNetResultHandler](API\Runtime\NetCore\Net\Core\Connection\FNetResultHandler)